AUTHOR=Luo Shuai , Tian Xiaoxue , Xu Ting , Wang Jinjing TITLE=Case Report: Metastatic squamous cell carcinoma in the left atrium JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=11 YEAR=2025 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2024.1500108 DOI=10.3389/fcvm.2024.1500108 ISSN=2297-055X